I think your 1st Path of Exile character should be whatever. There is no way you'll get it right unless blindly follow someone else builds and while it will work you'll have no idea why so you can't tweak it.

Most PoE players will tell you to pick several health talents but it's not until you make a char without them you realize how important it is.

And while I'm not a fan of the whole "no free point respec" thing they do full resets now and them so just fix your characters when this happens.

p.s. I already regret picking Endless Ammunitions on my Deadeye Ranger so I'll probably change it to an Avatar of Slaughter Raider Ranger in the future but until than I'll enjoy covering the whole screen with my arrows.